I've only been doing calligraphy since the end of March by taking Melissa Esplin's "I still love calligraphy" class online, but let me tell you that I have completely fallen in love with this art form! I definitely see myself seriously learning this for the long term. I bought Molly Suber's "Modern Calligraphy" book and my next purchase is "Mastering Copperplate Calligraphy" by Eleanor Winters. "Learn the rules like a pro so you can break them like an artist."